Origin: Latin prefix pre-
Preacher has 3 different meanings across 2 categories:
someone whose occupation is preaching the gospel
"The old church preacher stopped his sermon to answer a question from the back row about forgiveness."
Someone who preaches a worldview, philosophy, or religion, especially someone who preaches the gospel; a clergyman or clergywoman.
"The local preacher spoke passionately about charity and forgiveness during Sunday service."
Ecclesiastes, the twenty-first book of the Old Testament.
"During our Sunday Bible study, we opened to Ecclesiastes and read how its author reflects on the vanity of life under the sun."